Filter



FIG. 1 is a perspective view of a first embodiment of a filter showingour design.

FIG. 2 is a left side view thereof.

FIG. 3 is a right side view thereof.

FIG. 4 is a front view thereof.

FIG. 5 is a rear view thereof.

FIG. 6 is a top view thereof.

FIG. 7 is a bottom view thereof.

FIG. 8 is a perspective view of a second embodiment of a filter showingour design.

FIG. 9 is a left side view thereof.

FIG. 10 is a right side view thereof.

FIG. 11 is a front view thereof.

FIG. 12 is a rear view thereof.

FIG. 13 is a top view thereof; and,

FIG. 14 is a bottom view thereof.

The broken line showing in FIGS. 1 and 8 is included for the purpose ofillustrating and forms no part of the claimed design.

CLAIM The ornamental design for a filter, as shown and described.